From Open Groups’ specifications: If ptr is a null pointer, realloc() shall be equivalent to malloc() for the specified size. If ptr does not match a pointer returned earlier by calloc(), malloc(), or realloc() or if the space has previously been deallocated by a call to free() or realloc(), the behavior is undefined.
When one object creates another, it’s sometimes a good idea to make sure they’re both allocated from the same region of memory. The zone method (declared in the NSObject protocol) can be used for this purpose; it returns the zone where the receiver is located. This suggests to me that your ivars, and any objects … Read more
In my opinion, it is more complicated to use it instead of using new and delete. Yes, but it is not meant to replace new and delete, it serves a different purpose. With allocator we must explicitly allocate heap memory, construct it, destroy it, and then finally deallocate the memory. So why was it created? … Read more